All Wiring Diagrams for Infiniti Q45 2003

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Infiniti Q45 2003

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Infiniti Q45 2003:

(behind right side of dash) m114
(behind right side of dash) m115
(under right front door sill) b217
1a m1
A/c auto amplifier (behind right side of dash)
A/c switch
A/c-av (fr tx)
Acc
Air mix door motor (behind right side of center console, on heater unit)
Amb sens
Ambient sensor (at center front of engine compt)
Av-a/c (fr rx)
Bat
Clk
Clk (fr)
Clk (rr)
Combination meter
Comp on
Computer data lines system
Ecm comp
Ecv
Fan on
Fan pwm
Fuse 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Ground
Hot at all times
Hot in acc or on
Hot in on or start
Ign
In-vehicle sensor (below lower left side of dash)
Incar sens
Intake door motor (under right side of dash, on intake unit)
Intake sens
Joint connector (behind right end of dash, taped to harness)
Joint connector (behind top center of dash, taped to harness)
Joint connector (behind upper right end of dash, taped to harness)
Joint connector (behind upper right side of dash, taped to harness)
Joint connector 14 (behind upper right side of dash, taped to harness)
Lan sig
M119
M120
M25 (behind left side of dash)
M41
M42
Mode door motor (behind right side of dash)
Pnk
Rear control cancel relay
Rear control cancel switch
Rear control switch
Red
Rr ac (rr tx)
Rr-a/c (rr rx)
Rr/vent actr+
Rr/vent actr-
Sens gnd
Speed sens
Sun sens
Sunload sensor (behind left side of dash)
Sw a/c
Unified meter control unit
Vactr
W/t sens

Automatic A/C Wiring Diagram (2 of 2) for Infiniti Q45 2003

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List of elements for Automatic A/C Wiring Diagram (2 of 2) for Infiniti Q45 2003:

(at left front of engine compt, near engine oil level gauge) f8
(behind center of dash)
(behind right side of dash) m114
(behind right side of dash) m115
(under left side of rear parcel shelf)
11r
18r e3
3n m145
5m m144
Ac-av
Acclk
Acrly
Air conditioner relay
Air mix door motor (driver side)
Av & navi control unit (w/ navi)
Av control unit (w/o navi)
Av-ac
Avcc
B29
Blower motor (below right side of dash, on intake unit)
Blower relay
Bus +
Bus -
Bus shield
Can-h
Can-l
Close
Closed
Compressor
Computer data lines system
Cooling unit assembly
Display
Engine control module (behind glove box)
Engine controls system
F101
F102
Fuse 10a
Fuse 15a
Fuse block (j/b) 2 (behind right kick panel)
Fuse, fusible link & relay block (j/b) (in engine room box)
Gnd-a
Hot at all times
Intake sensor
Joint connector 12 (behind top center of dash, taped to harness)
Joint connector 29 (behind right kick panel, taped to harness)
Joint connector 30 (behind right kick panel, taped to harness)
M115 (behind right side of dash)
M77
M83
Mode door motor (driver side)
Multi-function switch
Nca
Open
Pdpres
Pnk
Rear vent door motor (behind left front of center console)
Red
Refrigerant pressure sensor (at front right of engine compartment, near condenser)
Shield
W/ av & navi control unit
W/ navi
W/o navi

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram (1 of 2) for Infiniti Q45 2003

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List of elements for Anti-lock Brakes Wiring Diagram (1 of 2) for Infiniti Q45 2003:

(behind left end of dash)
(on left front strut tower)
(unused pins not shown)
Abs w/l
Ascd
Ascd control unit (behind dash, left of steering column)
Bls
Can-h
Can-l
Computer data lines system
Data link connector (under left side of dash)
E21
E22
E23
E67
Fl mav
Fl mv-av
Fl mv-ev
Fl ss
Fl ss gnd
Fl usv
Fl-av4
Fl-ev4
Fr mav
Fr mv-av
Fr mv-ev
Fr ss
Fr ss gnd
Fr usv
Fr-av1
Fr-ev1
Fuse 17 15a
Fuse 6 10a
Fuse 7 10a
Fuse 9 10a
Fuse block (j/b) 1
Gnd
Gnd1
Gnd2
Hot at all times
Hot in on or start
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 12 (behind top center of dash, taped to harness)
Joint connector 4 (behind upper left side of dash)
Joint connector 7 (behind center of dash)
Joint connector 8 (behind center of dash)
Joint connector 9 (behind center of dash)
Left front wheel sensor
Left rear wheel sensor
Lis
Mc1-mav2
Mc1-usv2
Mc2-mav1
Mc2-usv1
Pkb sw
Pnk
Pressure sensor
Psm
Pss
Psu
Right front wheel sensor
Right rear wheel sensor
Rl mv-av
Rl mv-ev
Rl ss
Rl ss gnd
Rl-av2
Rl-ev2
Rr mv-av
Rr mv-ev
Rr ss
Rr ss gnd
Rr-av3
Rr-ev3
Rxd
Slip lamp
Stop light switch (on bracket, above brake pedal)
Tcs in
Txd
Vcc
Vdc actuator (right rear of engine compartment)
Vdc off lamp
Vdc off sw
Vdc/tcs/abs control unit (behind right kick panel)
Vout
W/o icc
Yrsm
Yrsrff
Yrss
Yrst
Yrsu

Anti-lock Brakes Wiring Diagram (2 of 2) for Infiniti Q45 2003

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List of elements for Anti-lock Brakes Wiring Diagram (2 of 2) for Infiniti Q45 2003:

(at right side of steering column) steering angle sensor
(behind left side of dash)
(behind left side of dash) m25
(behind left side of dash, taped to harness)
(on right front strut tower)
12v
Abs
Bite
Brake
Brake fluid level switch (at left rear of engine compt, on brake fluid reservoir)
Bs out
Can-h
Can-l
Combination meter
Computer data lines system
Drs out
E24
Electronic suspension system
Fuse f 30a
Fuse k 50a
Fuse, fusible link & relay block (j/b) (in engine room box)
Gnd
Ground
Hot at all times
Illum
Interior lights system
Joint connector 17 (behind upper right end of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 5
Low voltage detection circuit
M114 (behind right side of dash)
M24 (behind left side of dash)
M25
M41
M43
Motor relay
Parking brake switch (behind dash, at park brake assembly)
Ref
Sensor 1
Sensor 2
Sensor 3
Slip
Solenoid valve relay
Unified meter control unit
Vdc off
Vdc off switch
Vdc relay box (behind front grille)
W/ active damper suspension
Yaw rate and g sensor (under center console)

ANTI-THEFT

Anti-theft Wiring Diagram (1 of 2) for Infiniti Q45 2003

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List of elements for Anti-theft Wiring Diagram (1 of 2) for Infiniti Q45 2003:

(in engine room box)
(on left front fenderwell, near engine oil level gauge)
(under left front door sill)
(under right front door sill)
13r
19r
20b
25r
Accessory
B17
B17 (under left
B217
B57 (at center
Battery
Between full stroke & neutral
Body control module (behind left kick panel)
Data line a-3
Door sw (as)
Door sw (dr)
Door sw (rr)
E204
E62
Front door sill)
Front door switch (driver side)
Front door switch (passenger side)
Fuse 10a
Fuse 15a
Fuse 20a
Fuse block (j/b) 1 (behind left end of dash)
Fuse, fusible link & relay block (j/b) (in engine room box)
Fuse, fusible link & relay box
Ground
Head- lamp relay
Headlamp rly
Headlights system
High horn
Hood sw
Hood switch (near hood lock stay)
Horn chirp
Horn relay
Hot at all times
Hot in acc or run
Hot in on or start
Ignition
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 25 (behind left kick panel, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 37 (behind right rear shock tower, taped to harness)
Joint connector 9 (behind center of dash)
Keyless ground
Keyless power
Keyless sign
Left rear door lock assembly (door switch)
Low horn
M24 (behind left side of dash)
Pnk
Rear of vehicle)
Red
Remote keyless entry receiver (at left "c" pillar)
Right rear door lock assembly (door switch)
Theft ind
Trunk lid key cylinder switch (unlock switch)
Trunk lid lock switch
Trunk sw
Trunk unlock sw
Trunk, tailgate, fuel doors system

Anti-theft Wiring Diagram (2 of 2) for Infiniti Q45 2003

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List of elements for Anti-theft Wiring Diagram (2 of 2) for Infiniti Q45 2003:

B17 (under left front door sill)
B217 (under right front door sill)
Bat (c/b)
Circuit breaker
D38
D39
D58
D59
D78
D79
Data line a-3
Door
Door locks system
Driver door control unit
Fuse 10a
Fuse block (j/b) 1 (behind left end of dash)
Ground
Hot at all times
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 15 (behind upper right end of dash, taped to harness)
Joint connector 20 (behind right side of dash, taped to harness)
Joint connector 21 (behind lower right end of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 41 (in left front door)
Joint connector 6 (behind center of dash)
Left rear door control unit
Local data line
Lock switch
Locks
M114 (behind right side of dash)
M24 (behind left side of dash)
Multifunction switch
Passenger door control unit
Right rear door control unit
Security indicator
System
Unlock sens
Unlock switch

Immobilizer Wiring Diagram (NATS) for Infiniti Q45 2003

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List of elements for Immobilizer Wiring Diagram (NATS) for Infiniti Q45 2003:

(behind right kick panel, taped to harness)
6c m1
6n m145
Engine control module (behind glove box)
F102
F8 (at left front of engine compt, near engine oil level gauge)
Fuse 1 10a
Fuse 32 10a
Fuse 6 10a
Fuse 8 10a
Fuse block (j/b) 1 (behind left end of dash)
Fuse block (j/b) 2 (behind right kick panel)
Hot at all times
Hot in on or start
Im lime
Joint connector
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 15 (behind upper right end of dash, taped to harness)
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 20 (behind right side of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Key switch & key lock solenoid
M115 (behind right side of dash)
Multi-function switch
Nats antenna amplifier (behind right side of dash)
Nats immu (behind dash, left of steering column)
Red
Security indicator
Steering lock control unit (behind dash, right of steering column)

BODY CONTROL MODULES

Body Control Modules Wiring Diagram (1 of 2) for Infiniti Q45 2003

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List of elements for Body Control Modules Wiring Diagram (1 of 2) for Infiniti Q45 2003:

(tilt sw (down)
(behind left kick panel)
A/d grd
Acc
Auto sens
Body control module
Chime
Combo sw (auto)
Computer data lines system
Defog sw
Defogger system
Detent sw
Door locks system
Door sw (as)
Door sw (rl)
Exterior lights system
Flasher
Fuse 14 10a
Fuse 21 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Hdlt relay
Headlights system
Hot in acc or on
Hot in start
Iiurx
Iiutx
Ill out
Instrument cluster system
Int (vr)
Interior lights system
Joint connector 3 (behind upper left side of dash)
K/less gnd
K/less sig
K/less sig pwr
Keyless trunk open
Light sw
M24 (behind left side of dash)
Memory sw 1
Memory sw 2
Memory systems
Mirror sw down
Mirror sw left
Mirror sw right
Mirror sw up
Pnk
Red
Select sw lh
Select sw rh
Set sw
Shift interlock system
Shift lock sol
Speed sig
Tail relay
Telesco sw (fr)
Tilt sens
Tilt sw (up)
Tilt/tele sen pwr
Trunk, tailgate, fuel doors system
Warning system
Wash sw
Wiper/washer system
Wipr int sw

Body Control Modules Wiring Diagram (2 of 2) for Infiniti Q45 2003

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List of elements for Body Control Modules Wiring Diagram (2 of 2) for Infiniti Q45 2003:

20b
A/d batt
A/d gnd
All off
Anti-theft system
Batt
Body control module (behind left kick panel)
Circuit breaker 1
Computer data lines system
Data line a-1
Data line a2
Data line a3
Defogger system
Door locks system
Door sw (dr)
Door sw (rr)
Door warn lmp
E204
Exterior lights system
Fuse 1 10a
Fuse 3 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Headlights system
Hood sw
Horn chrp
Horns system
Hot at all times
Hot in on or start
Ign
Ign key
Instrument cluster system
Interior lights system
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 9 (behind center of dash)
Key switch
M24 (behind left side of dash)
Map/l (lh)
Map/l (rh)
Mem ind 2
Memory ind 1
Memory systems
Personal lmp sw
Pnk
Rap output
Red
Rev-lmp sw
Rl personal lmp (rl)
Rr def
Rr personal lmp
Seat belt sw
Tele motor (fr)
Tele motor (rr)
Telesco sens
Theft ind
Tilt motor (down)
Tilt motor (up)
Total ill
Trunk opener
Trunk opener sw
Trunk sw
Trunk unlock sw
Trunk, tailgate, fuel doors system
Warning system
Wiper amp
Wiper auto stop
Wiper/washer system

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Infiniti Q45 2003

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List of elements for Computer Data Lines Wiring Diagram for Infiniti Q45 2003:

(behind left end of dash)
(under rear of center console) air bag diagnosis sensor unit
33r e3
6c m1
Ascd control unit (behind dash, left of steering column)
Av & navi
Av control unit (w/o navigation) (behind center of dash)
Av-cn
B29
Body control module (behind left kick panel)
Can h
Can l
Cn-av
Combination meter
Control unit (w/ navigation) (under left side of rear parcel shelf)
D38
D58
D78
Data line a1
Data line a2
Data line a3
Data link connector (under left side of dash)
Ddl-rx
Ddl-tx
Driver seat control unit
Drivers door control unit
Drivers side door mirror control unit
Engine control module (behind glove box)
F102
F103
F8 (at left front of engine compt, near engine oil level gauge)
Front power seat (driver side)
Fuse 58 10a
Fuse 6 10a
Fuse block (j/b) 1
Fuse, fusible link & relay block (j/b) (in engine room box)
Hot at all times
Hot in on or start
Icc sensor (at front center of engine compartment)
Icc unit (at right side of trunk)
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 15 (behind upper right end of dash, taped to harness)
Joint connector 18 (behind center of dash)
Joint connector 29 (behind right kick panel, taped to harness)
Joint connector 5 (behind left side of dash, taped to harness)
Joint connector 8 (behind center of dash)
K-line
Kline
Left rear door control unit
Local data line
M103
M143
M25 (behind left side of dash)
M35
M41
M77
Passenger door control unit
Passenger side door mirror control unit
Pnk
Right rear door control unit
Rxd
Rxi
Steering angle sensor (at right side of steering column)
Transmission control module (behind glove box)
Txd
Txi
Vdc/tcs/abs control unit (behind right kick panel)
W/ icc
W/ navigation
W/o navigation

CRUISE CONTROL

Cruise Control Wiring Diagram for Infiniti Q45 2003

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List of elements for Cruise Control Wiring Diagram for Infiniti Q45 2003:

(spiral cable) combination switch
21r
24r
29r
31r
Actr high side
Air valve
Air valve low side
Ascd
Ascd brake switch (on bracket, above brake pedal)
Ascd control unit (behind dash, left of steering column)
Ascd pump (at right rear corner of engine compt)
Ascd steering wheel switch
Brake sw input
Cancel switch
Combination meter
Computer data lines system
Control sw (a/d) input
Control sw input (gnd)
Cruise
Cruise lamp input
Data link connector (under left side of dash)
Dual mode muffler control unit (at right side of trunk)
E24 (on right front strut tower)
Ecm prun input
Engine control module (behind glove box)
Etc prun
F101
F102
F8 (at left front of engine compt, near engine oil level guage)
Fuse 12 10a
Fuse 17 15a
Fuse 9 10a
Fuse block (j/b) 1 (behind left end of dash)
Fuse, fusible link & relay block (j/b) (in engine room box)
Gnd
Gnd-c
Hot at all times
Hot in on or start
Ign sw
Joint connector 12 (behind top center of dash, taped to harness)
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 18 (behind upper right end of dash, taped to harness)
Joint connector 4 (behind upper left side of dash)
Joint connector 5 (behind left side of dash, taped to harness)
Joint connector 7 (behind center of dash)
Joint connector 8 (behind center of dash)
M114 (behind right side of dash)
M24 (behind left side of dash)
M25 (behind left side of dash)
M41
M42
M43
M441
M53
Main switch
Motor low side
Od cancel sig
Park/neutral position relay
Pnk
Rel valve low side
Release valve
Resume/ accel sw
Rxi
Set
Set lamp output
Set/ coast switch
Solenoid monitor input
Start rly
Stoplight switch (on bracket above brake pedal)
Tcs input
Throttle position input
Transmission control module (behind glove box)
Tvo0
Txi
Unified meter control unit
Vacuum motor
Vdc/tcs/abs control unit (behind right kick panel)
Vehicle speed input

Intelligent Cruise Control Wiring Diagram (1 of 2) for Infiniti Q45 2003

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List of elements for Intelligent Cruise Control Wiring Diagram (1 of 2) for Infiniti Q45 2003:

(on right front fenderwell, forward of engine room box) e42
(under left side of dash, near ascd control unit) icc warning chime
19b
Accel/ resume sw
Air valve
Ascd pump (at right rear corner of engine compt)
B243
B244
B245
Bat-1
Bat-2
Bnc-sw
Bno-sw
Brake pressure sensor (at left rear of engine compartment)
Buzz
Can-h
Can-l
Cancel switch
Coast/ set switch
Combination switch (spiral cable)
Computer data lines system
Cruise
Data link connector (under left side of dash)
Ddl-rx
Ddl-tx
Distance switch
Dual mode muffler control unit (at right side of trunk)
E215
Engine control module (behind glove box)
Engine controls system
Front wiper motor (on left side of firewall)
Fuse 1 10a
Fuse 17 15a
Fuse 34 20a
Fuse 77 10a
Fuse 9 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Gnd-1
Gnd-2
Gnd-3
Gnd-a
Gnd-s
Gnd/sw 1
Hot at all times
Hot in on and start
Icc steering switch
Icc unit (at right side of trunk)
Ign-1
Ign-2
Instrument cluster system
Joint connector 12 (behind top center of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 30 (behind right kick panel, taped to harness)
Joint connector 4 (behind upper left side of dash)
Joint connector 8 (behind center of dash)
M441
M53
Od cancel
On/off switch
Pkb sw
Pnk
Psen-gnd
Psen-pwr
Psen-sig
Red
Release valve
Rls-nc
Rls-no
Rls-pwr
Safty
Sig/sw 2
Sol +
Sol -
Stp-lmp
T-rly
Tvo
Tvo0
Vacuum motor
Vacuum mtr
Vent
Vout
Vpwr
Warn
Wip-h
Wip-l
Wiper/washer system

Intelligent Cruise Control Wiring Diagram (2 of 2) for Infiniti Q45 2003

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List of elements for Intelligent Cruise Control Wiring Diagram (2 of 2) for Infiniti Q45 2003:

(behind right rear shock tower, taped to harness) joint connector 36
(on right front strut tower) e24
(with icc indicator)
14r
15r
21r
24r
29r
31r
B217 (under right front door sill)
Boost solenoid
Brake booster
Can-h
Can-l
Combination meter
Computer data lines system
Control unit unified meter
E24 (on right front strut tower)
F103
Fuse,fusible link & relay block (j/b) (in engine room box)
Gnd
Icc brake hold relay (at right side of engine compt)
Icc brake switch (on bracket, above brake pedal)
Icc sensor (at front center of engine compt)
Ign
Instrument cluster system
Joint connector 12 (behind top center of dash, taped to harness)
Joint connector 17 (behind upper right end of dash, taped to harness)
Joint connector 7 (behind center of dash)
M114 (behind right side of dash)
M24 (behind left side of dash)
M41
M42
M43
Nca
Park/neutral position relay
Parking brake switch (behind dash, at park brake assembly)
Pnk
Red
Start -rly
Starting/ charging system
Stoplight switch (on bracket, above brake pedal)
Transmission control module (behind glove box)

DEFOGGERS

Defoggers Wiring Diagram for Infiniti Q45 2003

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List of elements for Defoggers Wiring Diagram for Infiniti Q45 2003:

(behind right side of dash) m114
(behind upper right end of dash, taped to harness) joint connector 17
20b
B17 (under left front door sill)
B181
B421
B422 (at base of right "c" pillar)
Body control module (behind left kick panel)
Combination meter
Condenser
Def sw
Door mirror defogger relay (above fuse block (j/b) 1)
Driver side door mirror defogger
Fuse 1 10a
Fuse 10 20a
Fuse 11 20a
Fuse 4 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Grd
Hot at all times
Hot in acc or on
Hot in on or start
Ignition
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 2 (behind left side of dash, near fuse block)
Joint connector 41 (in left front door)
M114 (behind right side of dash)
M24 (behind left side of dash)
M42
Multifunction switch
Passenger side door mirror defogger
Rear defog
Rear window defogger
Rear window defogger and door mirror defogger relay (above fuse block (j/b) 1)
Rr def f/b
Rr def on
Unified meter ctrl unit

ELECTRONIC MUFFLER

Electronic Muffler Wiring Diagram for Infiniti Q45 2003

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List of elements for Electronic Muffler Wiring Diagram for Infiniti Q45 2003:

(behind right end of dash) joint connector 19
B57 (center rear of vehicle)
Close output
Dual mode muffler actuator (at left rear of vehicle)
Dual mode muffler control unit (at right side of trunk)
Engine control module (ecm) (behind glove box)
Fuse 1 10a
Fuse block (j/b) no. 1 (behind left end of dash)
Ground
Hot in on or start
Ignition
Open output
Tachometer
Tvo0

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram for Infiniti Q45 2003

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List of elements for Electronic Power Steering Wiring Diagram for Infiniti Q45 2003:

(behind left side of dash) m24
(behind right side of dash) m114
Combination meter
Computer data lines system
E24 (on right front strut tower)
Engine control module (behind glove box)
F101
Fuse 7 10a
Fuse 9 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Hot in on or start
Ign
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 18 (behind upper right end of dash, taped to harness)
Joint connector 19 (behind right end of dash, taped to harness)
Joint connector 4 (behind upper left side of dash)
Joint connector 9 (behind center of dash)
M114 (behind right side of dash)
M41
M43
Power steering control unit (behind dash, right side of center console)
Power steering solenoid valve (on steering rack assembly)
Sol
Tacho
Unified meter control unit
Vsp

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram (1 of 2) for Infiniti Q45 2003

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List of elements for Electronic Suspension Wiring Diagram (1 of 2) for Infiniti Q45 2003:

(at center rear of vehicle) b57
(behind left side of dash) m25
Active damper suspension control unit (behind left rear shock tower)
Active damper suspension select switch
Actr lf b
Auto
B17 (under left front door sill)
B37
B38
Batt
Data link connector (under left side of dash)
E24 (on right front strut tower)
E62 (on left front fenderwell, near engine oil level gauge)
Engine control module (behind glove box)
Eps sol
Exterior lights system
F101
Fr com actr
Fuse 17 15a
Fuse 6 10a
Fuse 7 10a
Fuse block (j/b) 1 (behind left end of dash)
G sens fr in
G sens gnd
G sens pwr
G sens rr in
Gnd 1
Gnd 2
Gnd 3
Hot at all times
Hot in on or start
Ign 2
Ign 3
Ign 4
Illum
Ind
Interior lights system
Joint connector (behind center of dash)
Joint connector (behind upper right end of dash, taped to harness)
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 12 (behind top center of dash, taped to harness)
Joint connector 19 (behind right end of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 5 (behind left side of dash, taped to harness)
Left front shock absorber actuator (on top of left shock tower, under hood)
Lf actr a
Lf actr b
Lr actr a
Lr actr b
Pnk
Power steering control unit (behind dash, right side of center console)
Power steering solenoid valve (on steering rack assembly)
Red
Rf actr a
Rf actr b
Right front shock absorber actuator (on top of right shock tower, under hood)
Rr actr a
Rr actr b
Rr actr com
Select
Speed sens
Sport
Stop sw
Stoplight switch (on bracket, above brake pedal)
Strg sen 1
Strg sen 2
Strg sen neu
Tacho
Vign

Electronic Suspension Wiring Diagram (2 of 2) for Infiniti Q45 2003

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List of elements for Electronic Suspension Wiring Diagram (2 of 2) for Infiniti Q45 2003:

12v
Anti-lock brakes system
B17 (under left front door sill)
B217 (under right front door sill)
Can-h
Can-l
Combination meter
Computer data lines system
Front vertical g sensor (at base of left kick panel)
Fuse 9 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Hot in on or start
Joint connector (behind right rear shock tower, taped to harness)
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 4 (behind upper left side of of dash)
Left rear shock absorber actuator (on top of left rear shock tower)
M115 (behind right side of dash)
M24 (behind left side of dash)
M41
M43
Pnk
Rear vertical g sensor (at right "c" pillar)
Right rear shock absorber actuator (on top of right rear shock absorber)
Sen 1
Sen 2
Sen 3
Sport ind
Steering angle sensor (at right side of steering column)
Unified meter control unit
Vcc
Vout

ENGINE PERFORMANCE

4.5L

4.5L, Engine Performance Wiring Diagram (1 of 5) for Infiniti Q45 2003

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List of elements for 4.5L, Engine Performance Wiring Diagram (1 of 5) for Infiniti Q45 2003:

(behind right kick panel)
(behind upper left side of dash) j/c 4
A/c system
Acrly
Active damper suspension unit control unit (left rear shock tower)
Ascd control unit (behind dash, left of steering column)
Combination meter
Cooling fan speed control solenoid valve (on front of engine)
Crankshaft position sensor (pos) (on rear of cyl block)
Crtn
Cvbv
Dual mode muffler control unit (at right of trunk)
Engine control module (ecm) (behind glove box)
Etc prun
Evap
Evap canister purge volume control solenoid valve (on top right rear of engine)
F8 (left front of eng comp, near eng oil level gauge)
Fpcm
Fpr
Fuel injector
Fuse 10a
Fuse block (j/b) 1 (left end of panel)
Hot in on or start
Ign 1
Ign 2
Ign 3
Ign 4
Ign 5
Ign 6
Ign 7
Ign 8
Ignsw
Inj 1
Inj 2
Inj 3
Inj 4
Inj 5
Inj 6
Inj 7
Inj 8
J/c (behind right kick panel)
J/c 19 (behind right end of dash)
J/c 28
Led
Malfunction indicator lamp
Motrly
Nca
O2hfl
O2hfr
O2hrl
O2hrr
Pnk
Pos
Power steering control unit (behind dash, right side of center console)
Prf+
Prf-
Prun in
Red
Ssoff
Stsw
Tacho
Tp in
Tvo0
Unified meter control unit
Vacuum cut valve bypass valve (under rear of vehicle, forward of evap canister)
Vias
Vias control solenoid valve (top front center of engine)

4.5L, Engine Performance Wiring Diagram (2 of 5) for Infiniti Q45 2003

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List of elements for 4.5L, Engine Performance Wiring Diagram (2 of 5) for Infiniti Q45 2003:

(behind right end of dash) j/c 19
(left front of eng comp, near eng oil level gauge)
22r
Condenser
Ecm relay
Fuse 10a
Fuse 15a
Fuse 20a
Fuse block (j/b) 1 (left end of panel)
Fuse block (j/b) 2 (right kick panel)
Fuse, fusible link & relay block (j/b) (in engine room box)
Hot at all times
Hot in on or start
Hot in start
Ignition coil 1 (w/ power transistor)
Ignition coil 2 (w/ power transistor)
Ignition coil 3 (w/ power transistor)
Ignition coil 4 (w/ power transistor)
Ignition coil 5 (w/ power transistor)
Ignition coil 6 (w/ power transistor)
Ignition coil 7 (w/ power transistor)
Ignition coil 8 (w/ power transistor)
Nca
Plug spark
Red
Spark plug
Throttle control motor relay

4.5L, Engine Performance Wiring Diagram (3 of 5) for Infiniti Q45 2003

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List of elements for 4.5L, Engine Performance Wiring Diagram (3 of 5) for Infiniti Q45 2003:

(behind top center of dash) j/c 12
33r
34r
Camshaft position sensor (phase) (on front of left cyl head)
F8 (left front of engine compt)
Fuel pump relay
Fuse 10a
Fuse 15a
Fuse block (j/b) 1 (left end of dash)
Fuse block (j/b) 2 (right kick panel)
Fuse, fusible link & relay block (j/b) (in engine room box)
Heated oxygen sensor 1 (bank 1) (on intlet of left manifold three-way catalyst)
Heated oxygen sensor 1 (bank 2) (on intlet of right manifold three-way catalyst)
Heated oxygen sensor 2 (bank 1) (on outlet of left manifold three-way catalyst)
Heated oxygen sensor 2 (bank 2) (on outlet of right manifold three-way catalyst)
Hot at all times
Hot in on or start
Intake valve timing control position sensor (bank 1) (on front of left cyl head)
Intake valve timing control position sensor (bank 2) (on front of right cyl head)
J/c 29 (behind right kick panel)
J/c 30
Nca
Panel)
Radiator coolant temperature sensor (left side of radiator)
Red
Refrigerant pressure sensor (front right side of engine compt, near condenser)

4.5L, Engine Performance Wiring Diagram (4 of 5) for Infiniti Q45 2003

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List of elements for 4.5L, Engine Performance Wiring Diagram (4 of 5) for Infiniti Q45 2003:

(right kick panel) b217
Accelerator pedal position (app) sensor 1
Accelerator pedal position (app) sensor 2
Aps1
Avcc2
Batt
Condenser
Electric throttle control actuator
Engine control module (ecm) (behind glove box)
Engine coolant temperature sensor (on top rear of engine)
Evap control system pressure sensor (in evap purge line)
F8 (left front of engine compt)
F8 (left front of engine)
Fuel pump control module (fpcm) (on right side of trunk)
Gnd a
Gnd a2
Ivcpusl
Ivcpusr
J/c
J/c (behind right kick panel)
J/c 28 (behind right kick panel)
J/c 29 (behind right kick panel)
Mass airflow (maf) sensor (intake air temp sensor) (between air duct & air cleaner housing)
Nca
Neut
Pdpres
Phase
Pnk
Power steering pressure (psp) sensor (lower right front of engine)
Qa+
Red
Starting/ charging system
Throttle control motor
Throttle position (tp) sensor 1
Throttle position (tp) sensor 2
Tps2

4.5L, Engine Performance Wiring Diagram (5 of 5) for Infiniti Q45 2003

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List of elements for 4.5L, Engine Performance Wiring Diagram (5 of 5) for Infiniti Q45 2003:

(left front of engine compt, near engine oil gauge)
(left kick panel) b17
Aps2
Avcc
Brksw
Can h
Can l
Cdcv
Computer data lines system
Dropping resistor
Engine control module (ecm) (behind glove box)
Evap canister vent control valve (under rear of vehicle, on evap canister)
Fgauge+
Fgauge-
Fpcmck
Ftprs
Fuel level sensor unit & fuel pump (in fuel tank)
Gnd c
Gnd e
Gnd m
Im lime
Intake valve timing control solenoid valve (bank 1) (on top front of left cyl head)
Intake valve timing control solenoid valve (bank 2) (on top front of right cyl head)
Ivcl
Ivcr
J/c (behind right kick panel)
J/c 15 (behind upper right side of dash)
J/c 7 (behind center of dash)
Kline
Knk1
Knk2
Knock sensor (bank 1) (below left side of intake manifold)
Knock sensor (bank 2) (below right side of intake manifold)
Motor 1
Motor 2
Nats immu (behind dash, left of steering column)
Nca
O2sfl
O2sfr
O2srl
O2srr
Pnk
Pspres
Qa-
Red
Stop lamp switch (on bracket, above brake pedal)
Tps1
Tvo0
Twrf
Vmot

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Infiniti Q45 2003

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List of elements for Back-up Lamps Wiring Diagram for Infiniti Q45 2003:

B57 (at center rear of vehicle)
Back- up
Back-up lamp relay (in fuse, fusible link & relay block)
Fuse 10a
Fuse block (j/b) 1 (behind left end of dash)
Hot in on or start
Joint connector 4 (behind upper left side of dash)
Joint connector 9 (behind center of dash)
Left rear combination lamp
Rev-lamp relay
Right rear combination lamp
Transmission control module (behind glove box)

Exterior Lamps Wiring Diagram (1 of 2) for Infiniti Q45 2003

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List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Infiniti Q45 2003:

12r
1st
20b
26r
2nd
Auto
B217 (under right front door sill)
B57 (at center rear of vehicle)
Bat
Body control module (behind left kick panel)
Comb sw
Combi- nation switch (lighting switch)
Door sw
Driver side front door switch
E201
E42 (on right front fenderwell, forward of engine room box)
E44 (on right front fenderwell, forward of engine room box)
Fuse 1 10a
Fuse 17 15a
Fuse 54 15a
Fuse 6 10a
Fuse block (j/b) 1 (behind left end of dash)
Fuse, fusible link & relay block (j/b) (in engine room box)
Gnd
H/l rly
H/l sw
Headlamp battery saver control unit (behind dash, left of steering column)
Headlights system
High- mounted stop lamp
Hot at all times
Hot in on or start
Ign sw
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 12 (behind top center of dash, taped to harness)
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 18 (behind upper right end of dash, taped to harness)
Joint connector 7 (behind center of dash)
Left front combination lamp
Left license lamp
Left rear combination lamp
M115 (behind right side of dash)
M25 (behind left side of dash)
M33
M34
Off
Parking
Passenger side front door switch
Rap
Rap out
Right front combination lamp
Right license lamp
Right rear combination lamp
Side marker
Stop
Stoplight switch (on bracket, above brake pedal)
T/l rly
T/l sw
Tail
Tail lamp relay
Turn

Exterior Lamps Wiring Diagram (2 of 2) for Infiniti Q45 2003

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List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Infiniti Q45 2003:

(behind right side of dash, taped to harness) joint connector 20
10b
11b
17b
18b
Bat
Body control module (behind left kick panel)
Combination flasher unit (behind dash, right side of center console)
Combination meter (turn signal)
Combination switch (turn signal switch)
Driver side door mirror (turn signal)
E201
E62 (on left front fenderwell, near engine oil level gauge)
Flasher
Fuse 22 15a
Fuse 5 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Haz sw & bcm
Hazard
Hazard switch
Hot at all times
Hot in on or start
Ign sw
Illum
Interior lights system
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 4 (behind upper left side of dash)
Left front combination lamp (turn signal)
Left turn
Left turn ind
Low tire pressure warning control unit (behind center of dash)
M114 (behind right side of dash)
M24 (behind left side of dash)
M43
Passenger side door mirror (turn signal)
Pnk
Right front combination lamp (turn signal)
Right turn
Right turn ind
T/s sw

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 2) for Infiniti Q45 2003

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List of elements for Ground Distribution Wiring Diagram (1 of 2) for Infiniti Q45 2003:

A/c auto amp
A/t device
A/t pv ign relay
Active damper suspension select switch
Adp steering switch
Air bag diagnosis sensor unit
Air mix door motor (driver side)
Air mix door motor (passenger side)
Alternator
Ascd control unit
Auto anti-dazzling inside mirror -compass
Auto return cancel switch
Av control unit (w/o navi)
B422 (at base of right "c" pillar)
Blower motor
Body control module (bcm)
Brake fluid level switch
Cd auto changer
Climate controlled seat relay
Clock
Combination flasher unit
Combination meter
Combination switch (front wiper switch)
Combination switch (lighting switch)
Console box lamp
Data link connector
Daytime light control unit
Display
Door mirror (driver side) -turn signal -door mirror defogger
Door mirror (passenger side) -turn signal -door mirror defogger
Driver door control unit
Driver side door mirror control unit
E24 (on right front strut tower)
E307 (at right front of engine compartment, near battery)
E42 (on right front fenderwell, forward of engine room box)
E44 (on right front fenderwell, forward of engine room box)
E62 (on left front fenderwell, near engine oil level gauge)
E67 (on left front strut tower)
E9 (at center front of engine compartment)
Front cigarette lighter socket
Front door key cylinder switch (driver side)
Front door lock actuator (driver side)
Front door lock actuator (passenger side)
Front interior lamp -left map lamp -right map lamp -interior lamp ill switch
Front power socket
Front power window regulator
Front power window regulator (passenger side)
Front wiper motor
Front wiper relay
Fuse block (j/b) no. 1 -accessory relay -trunk lid opener relay
Fuse block (j/b) no.2 blower relay
Fuse, fusible link & relay block (j/b)
Glove box lamp
Handset (option)
Hazard switch
Headlamp battery saver control unit
Heated seat switch (driver side)
Heated seat switch (passenger side)
Homelink universal transceiver
Hood switch
Icc brake hold relay (w/icc)
Icc sensor (w/icc)
Ignition relay
Illumination control switch
Intake door motor
Key switch & key lock solenoid
Left front combination lamp -headlamp
Left front combination lamp -headlamp aiming motor
Left front combination lamp -parking
Left front combination lamp -side marker
Left front combination lamp -turn signal
Left front shock absober actuator
Low tire pressure warning control unit
M114 (behind right side of dash)
M115 (behind right side of dash)
M24 (behind left side of dash)
M25 (behind left side of dash)
Mode door motor (driver side)
Mode door motor (passenger side)
Multi-function switch
Park/neutral position relay
Passenger door control unit
Passenger side door mirror control unit
Power steering control unit
Power steering solenoid valve
Rear control switch
Rear interior lamp -left personal lamp -right personal lamp
Rear sunshade front switch
Rear sunshade rear switch
Rear sunshade rear switch (w/rear control switch)
Rear window defogger (-)
Right front combination lamp -headlamp
Right front combination lamp -headlamp aiming motor
Right front combination lamp -parking
Right front combination lamp -side marker
Right front combination lamp -turn signal
Right front shock absorber actuator
Seat memory switch
Shield wire (a/t pv ign relay)
Shield wire (air bag diagnosis sensor unit)
Shield wire [tcm (transmission control module)]
Shift lock control unit
Steering angle sensor
Steering lock control unit
Sunroof motor assembly
Trunk lid & fuel lid opener switch
Vanity mirror lamp (driver side)
Vanity mirror lamp (passenger side)
Vdc off switch
Vdc/tcs/ abs control unit
Washer level switch

Ground Distribution Wiring Diagram (2 of 2) for Infiniti Q45 2003

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List of elements for Ground Distribution Wiring Diagram (2 of 2) for Infiniti Q45 2003:

Active damper suspension control unit
Air bag diagnosis sensor unit
Ascd control unit (w/o icc)
Av & navi control unit (w/ navi)
B16 (under left front door sill)
B17 (under left front door sill)
B216 (under right front door sill)
B217 (under right front door sill)
B256 (at right front of trunk)
B57 (at center rear of vehicle)
Bose speaker amp
Climate controlled seat control unit (driver side)
Climate controlled seat control unit (passenger side)
Climate controlled seat switch (driver side)
Climate controlled seat switch (passenger side)
Condenser
Crankshaft position sensor (phase)
Crankshaft position sensor (pos)
Data link connector
Door mirror defogger relay
Driver seat control unit (lcu02)
Dropping resistor
Dual mode muffler control unit
Ecm
F8 (at left front of engine compartment, near engine oil level gauge)
F9 (at left front of engine compartment, near engine oil level gauge)
Front seat cushion heater (driver side)
Front seat cushion heater (passenger side)
Fuel pump control module (fpcm)
Heated oxygen sensor 1 (bank 1)
Heated oxygen sensor 1 (bank 2)
Heated oxygen sensor 2 (bank 1)
Heated oxygen sensor 2 (bank 2)
High-mounted stop lamp
Icc unit
Ignition coil (w/ power transistor) no.1
Ignition coil (w/ power transistor) no.2
Ignition coil (w/ power transistor) no.3
Ignition coil (w/ power transistor) no.4
Ignition coil (w/ power transistor) no.5
Ignition coil (w/ power transistor) no.6
Ignition coil (w/ power transistor) no.7
Ignition coil (w/ power transistor) no.8
Intake valve timing control position sensor (bank 1)
Intake valve timing control position sensor (bank 2)
Left license lamp
Left rear ashtray illumination
Left rear combination lamp -stop/tail -back-up -turn signal
Left rear door control unit
Left rear door lock actuator
Left rear door lock assembly (door switch)
Left rear power seat control unit (w/ heated seat)
Left rear power seat control unit (w/o heated seat)
Left rear power seat switch
Left rear power window regulator
Left rear seat cushion heater
Left rear shock absorber actuator
Nats immu
Power seat switch (driver side)
Power seat switch (passenger side)
Rear control cancel relay
Rear sunshade cancel relay
Rear sunshade unit
Rear view camera
Rear view camera control unit
Right license lamp
Right rear ashtray illumination
Right rear combination lamp -stop/tail -back-up -turn signal
Right rear door control unit
Right rear door lock actuator
Right rear door lock assembly (door switch)
Right rear power seat control unit (w/ heated seat)
Right rear power seat control unit (w/o heated seat)
Right rear power seat switch
Right rear power window regulator
Right rear seat cushion heater
Right rear shock absorber actuator
Seat belt buckle switch
Seat belt buckle switch (passenger side)
Shield wire (brake booster) (w/ icc)
Shield wire (camshaft position sensor (phase)
Shield wire (crankshaft position sensor (pos)
Shield wire (elecrtric throttle control actuator (throttle position sensor))
Shield wire (electric throttle control actuator (accelerator pedal position sensor))
Shield wire (electric throttle control actuator (throttle control motor))
Shield wire (electric throttle control actuator (throttle position sensor))
Shield wire (intake valve timing control position sensor (bank 1))
Shield wire (intake valve timing control position sensor (bank 2))
Shield wire (mass air flow sensor) - mass air flow sensor - intake air temperature sensor
Shield wire (rear view camera)
Shield wire (refrigerant pressure sensor)
Shield wire (tcm (transmission control module))
Shield wire (voice activation control module)
Shield wire [left side air bag (satellite) sensor]
Shield wire [right side air bag (satellite) sensor]
Tcm (transmission control module)
Trunk closure control unit
Trunk lid key cylinder switch
Trunk lid lock switch
Trunk lid striker switch
Voice activated control module

HEADLIGHTS

Headlamps Wiring Diagram, with DRL (1 of 2) for Infiniti Q45 2003

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List of elements for Headlamps Wiring Diagram, with DRL (1 of 2) for Infiniti Q45 2003:

(behind center of dash)
(under left
1 st
2 nd
20b
Acc
Auto
Auto light sens
Auto lt sens gnd
Av and navi control unit
Av control unit (behind center of dash)
Av-me
Bat
Body control module (behind left kick panel)
Comb sw (auto)
Combination switch (lighting switch)
Data link connector (under left side of dash)
Door sw as
Door sw dr
Driver side front door switch
Fuse 1 10a
Fuse 21 10a
Fuse 3 10a
Fuse 6 10a
Fuse 8 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Gnd1
Gnd2
H/l rly out1
H/l rly out2
H/l sw1
H/l sw2
H/lamp rly
Headlamp battery saver control unit (behind dash, left of steering column)
Hot at all times
Hot in acc or on
Hot in on or start
Ign
Ign sw
Iiurx
Iiutx
Ill out
Interior lights system
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 15 (behind upper right end of dash, taped to harness)
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 18 (behind upper behind right end of dash, taped to harness)
Joint connector 20 (behind right side of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 7 (behind center of dash)
Joint connector 8 (behind center of dash)
Joint connector 9
Joint connector 9 (behind center of dash)
Key sw
Key switch and key lock solenoid (key switch)
Light sw (1st)
Low
M1 6c
M115 (behind right side of dash)
M24 (behind left side of dash)
M25 (behind left side of dash)
M33
M34
M77
Meav
Nca
Off
Optical sensor (on top right side of dash)
Pass
Pnk
Rap input
Rap output
Shield
Side of rear parcel shelf)
T/l rly out 1
T/l rly out2
T/l sw1
T/l sw2
Tail/l rly
W/ navigation
W/o navigation

Headlamps Wiring Diagram, with DRL (2 of 2) for Infiniti Q45 2003

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List of elements for Headlamps Wiring Diagram, with DRL (2 of 2) for Infiniti Q45 2003:

12r
13r
25r
26r
Alt
Alternator
Combination meter
Daytime light control unit
E26
E27
E28
E310
E42 (on right front fenderwell, forward of engine room box)
E62 (on left front fenderwell, near engine oil level gauge)
E65
E66
E66 left front combination lamp (headlamp)
Engine controls system
Fuse 14 10a
Fuse 54 15a
Fuse 55 20a
Fuse 57 20a
Fuse 73 15a
Fuse 82 10a
Fuse block (at right side of engine compt)
Fuse block (j/b) 1 (behind left end of dash)
Fuse, fusible link and relay block (j/b) (in engine room box)
Fuse, fusible link and relay box (in engine room box)
Gnd
Headlamp relay 1
Headlamp relay 2
Hid
High
High beam indicator
Hot at all times
Hot in on or start
Hot in start
Ign
Joint connector (behind left side of dash, near fuse block)
Joint connector 13 (behind top center of dash, taped to harness)
Joint connector 17 (behind upper right end of dash, taped to harness)
Joint connector 20 (behind right side of dash, taped to harness)
Lh light
Lh light fuse
Lh light main
Lh main sw
Low
M42
M43
Parking brake switch (behind dash, at park brake assembly)
Passenger side front door switch
Pkb sw
Pnk
Red
Rh light
Rh light fuse
Rh light main
Rh main sw
Right front combination lamp (headlamp)
Start
Starting/charging system
Tail lamp relay
Unified meter control unit

Headlamps Wiring Diagram, without DRL (1 of 2) for Infiniti Q45 2003

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List of elements for Headlamps Wiring Diagram, without DRL (1 of 2) for Infiniti Q45 2003:

(under left
1st
20b
2nd
6c m1
Acc
Auto
Auto light sens
Auto lt sens gnd
Av and navi control unit
Av control unit (behind center of dash)
Av-me
Bat
Body control module (behind left kick panel)
Comb sw (auto)
Combination switch (lighting switch)
Data link connector (under left side of dash)
Door sw as
Door sw dr
Driver side front door switch
Fuse 1 10a
Fuse 21 10a
Fuse 3 10a
Fuse 6 10a
Fuse 8 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Gnd1
Gnd2
H/l rly out1
H/l rly out2
H/l sw1
H/l sw2
H/lamp rly
Headlamp battery saver control unit (behind dash, left of steering column)
Hot at all times
Hot in acc or on
Hot in on or start
Ign
Ign sw
Iiurx
Iiutx
Ill out
Interior lights system
Joint connector 11 (behind upper right side of of dash, taped to harness)
Joint connector 15 (behind upper right end of of dash, taped to harness)
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 18 (behind upper right end of dash, taped to harness)
Joint connector 20 (behind right side of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 7 (behind center of dash)
Joint connector 8 (behind center of dash)
Joint connector 9 (behind center of dash)
Key sw
Key switch and key lock solenoid (key switch)
Light sw (1st)
Low
M115 (behind right side of dash)
M24 (behind left side of dash)
M25 (behind left side of dash)
M33
M34
M77
Meav
Nca
Off
Optical sensor (on top right side of dash)
Out
Pass
Pnk
Power
Rap input
Rap output
Shield
Side of rear parcel shelf)
T/l rly out 1
T/l rly out2
T/l sw1
T/l sw2
Tail/l rly
W/ navigation
W/o navigation

Headlamps Wiring Diagram, without DRL (2 of 2) for Infiniti Q45 2003

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List of elements for Headlamps Wiring Diagram, without DRL (2 of 2) for Infiniti Q45 2003:

12r
13r
25r
26r
Combination meter
E201
E42 (on right front fenderwell, forward of engine room box)
E45
E46
E62 (on left front fenderwell, near engine oil level gauge)
E65
E66 left front combination lamp (headlamp)
Fuse 54 15a
Fuse 55 20a
Fuse 57 20a
Fuse 73 15a
Fuse, fusible link and relay block (j/b) (in engine room box)
Fuse, fusible link and relay box (in engine room box)
Headlamp relay 1
Headlamp relay 2
Hid
High
High beam indicator
Hot at all times
Joint connector (behind left side of dash, near fuse block)
Joint connector 13 (behind top center of dash, taped to harness)
Joint connector 20 (behind right side of dash, taped to harness)
Low
M1 fuse block (j/b) 1 (behind left end of dash)
M42
M43
Passenger side front door switch
Pnk
Red
Right front combination lamp (headlamp)
Tail lamp relay
Unified meter control unit

HORN

Horn Wiring Diagram for Infiniti Q45 2003

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List of elements for Horn Wiring Diagram for Infiniti Q45 2003:

19r
Body control module (behind left kick panel)
Combination switch (spiral cable)
E204
Fuse 56 15a
Fuse, fusible link & relay block (j/b) (in engine room box)
High horn
Horn chrp
Horn relay
Horn switch
Hot at all times
Joint connector 25 (behind left kick panel, taped to harness)
Low horn
M441
M53
Red

INSTRUMENT CLUSTER

Gauges & Indicators Wiring Diagram for Infiniti Q45 2003

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List of elements for Gauges & Indicators Wiring Diagram for Infiniti Q45 2003:

(behind left side of dash)
(behind upper right end of dash, taped to harness) joint connector 15
(or red)
(w/ odo/trip meter & a/t indicator)
15a
A/t device
A/t oil temp
Abs
Air bag
Air conditioning system
Anti-lock brakes system
Auto
B17 (under left front door sill)
Bat
Belt
Body control module (behind left kick panel)
Brake
Brake fluid level switch (at left rear of engine compt, on brake fluid reservoir)
Charge
Clock
Combination meter
Computer data lines system
Cruise (w/o icc)
Cruise control system
Defogger system
Diode
Door
Door warn lamp
E24 (on right front strut tower)
E62 (on left front fenderwell, near engine oil level guage)
Electroinc suspension system
Engine control module (behind glove box)
Exterior lights system
Fluorescent lamp
Front power seat (driver side)
Fuel
Fuel gauge
Fuel level fuel level sensor unit & fuel pump
Fuel level sensor
Fuse 21 10a
Fuse 6 10a
Fuse 9 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Headlights system
High beam
Hot at all times
Hot in acc or on
Hot in on or start
Illum
Ind out
Interior lights system
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 17 (behind upper right end of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 4 (behind upper left side of dash)
Left turn
Light (+)
Light (-)
Low
Low tire pressure warning control unit (behind center of dash)
Low volt detection circuit
M114 (behind right side of dash)
M24
M24 (behind left side of dash)
M41
M42
M43
Mal ind out
Malfunction indicator lamp
Manual
Mode select switch
Nca
Oil
Oil pressure switch (on front center of engine)
Parking brake switch (behind dash, at park brake assembly)
Pnk
Position select switch
Red
Right turn
Seat belt buckle switch
Set (w/o icc)
Shift interlock system
Slip
Speedometer
Sport
Starting/ charging system
Tachometer
Tire pressure
Unified meter control unit
Vdc off
Vehicle information system circuit
W/ icc
Washer level switch (in washer fluid reservoir)
Water temp gauge

Vehicle Information System Wiring Diagram, with Navigation (1 of 2) for Infiniti Q45 2003

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List of elements for Vehicle Information System Wiring Diagram, with Navigation (1 of 2) for Infiniti Q45 2003:

(behind upper right end of dash, taped to harness)
23r e3
Ac-av
Acc
Acclk
Air conditioning system
Av & navi control unit (under left side of rear parcel shelf)
Av-ac
Av-cn
Av-me
B29
B30
B57 (at center rear of vehicle)
Bat
Body control module (behind left kick panel)
Bus (+)
Bus (-)
Bus shield
Cn-av
Combination meter
Combination switch (spiral cable)
Computer data lines system
Data out
Display
Fuse 1 10a
Fuse 15a
Fuse 21 10a
Fuse block (j/b) 1 (behind left end of dash)
Fuse, fusible link & relay box (in engine room box)
Gnd
Hot at all times
Hot in acc or on
Hot in on or start
Ign
Iiurx
Iiutx
Ill out
Joint connector 17
Joint connector 17 (behind upper right end of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 4 (behind upper left side of dash)
Joint connector 7 (behind center of dash)
Low tire pressure warning control unit (behind center of dash)
M1 19b
M114 (behind right side of dash)
M41
M441
M53
Me-av
Multifunction switch
Nca
Parking brake switch (behind dash, at park brake assembly)
Pkb
Pnk
Red
Rgb gnd
Rgb sync
Rx strg
Shield
Sound systems
Speed
Steering switch
Unified meter control unit

Vehicle Information System Wiring Diagram, with Navigation (2 of 2) for Infiniti Q45 2003

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List of elements for Vehicle Information System Wiring Diagram, with Navigation (2 of 2) for Infiniti Q45 2003:

(+)
(-)
(behind left side of dash, near fuse block) joint connector 10
Acc
Acp a
Acp b
Audio out (+)
Audio out (-)
Audio phn (+)
Audio phn (-)
Audio shield
Audio unit
B234
B256 (at right front of trunk)
B57 (at center rear of vehicle)
B69
B71
Batt
Bose speaker amplifier (at center front of trunk)
Bus (+)
Bus (-)
Gnd
Joint connector 36 (behind right rear shock tower, taped to harness)
Joint connector 37 (behind right rear shock tower, taped to harness)
M86
M87
Mic in (+)
Mic in (-)
Microphone
Mute
Mute pse in
Nca
Option connector 2 for voice activated system
Phn out (+)
Phn out (-)
Phn shield
Phone (+)
Phone (-)
Pnk
R10
Red
Shield
Voice activated control module (left rear of trunk)

Vehicle Information System Wiring Diagram, without Navigation (1 of 2) for Infiniti Q45 2003

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List of elements for Vehicle Information System Wiring Diagram, without Navigation (1 of 2) for Infiniti Q45 2003:

(behind left side of dash) m25
(behind left side of dash, taped to harness) joint connector 5
(behind upper right end of dash, taped to harness) joint connector 17
19b m1
23r e3
Ac-av
Acc
Acclk
Air conditioning system
Av control unit (behind center of dash)
Av-ac
Av-cn
Av-me
Bat
Body control module (behind left kick panel)
Bus (+)
Bus (-)
Bus shield
Cn-av
Combination meter
Combination switch (spiral cable)
Computer data lines system
Data out
Display
Fuse 1 10a
Fuse 15a
Fuse 21 10a
Fuse block (j/b) 1 (behind left end of dash)
Fuse, fusible link & relay box (in engine room box)
Gnd
Hot at all times
Hot in acc or on
Hot in on or start
Ign
Iirux
Iiutx
Ill
Ill out
Joint connector 17 (behind upper right end of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 4 (behind upper left side of dash)
Joint connector 7 (behind center of dash)
Low tire pressure warning control unit (behind center of dash)
M114 (behind right side of dash)
M41
M441
M50
M53
M77
M78
Me-av
Multifunction switch
Nca
Parking brake switch (behind dash, at park brake assembly)
Pkb
Pnk
Red
Rgb gnd
Rgb sync
Rx strg
Shield
Sound systems
Speed
Steering switch
Unified meter control unit

Vehicle Information System Wiring Diagram, without Navigation (2 of 2) for Infiniti Q45 2003

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List of elements for Vehicle Information System Wiring Diagram, without Navigation (2 of 2) for Infiniti Q45 2003:

(+)
(-)
(behind left side of dash, near fuse block) joint connector 10
Acc
Acp a
Acp b
Audio out (+)
Audio out (-)
Audio phn (+)
Audio phn (-)
Audio shield
Audio unit
B234
B256 (at right front of trunk)
B57 (at center rear of vehicle)
B69
B71
Batt
Bose speaker amplifier (at center front of trunk)
Bus (+)
Bus (-)
Gnd
Joint connector (behind right rear shock tower, taped to harness)
Joint connector 37 (behind right rear shock tower, taped to harness)
M86
M87
Mic in (+)
Mic in (-)
Microphone
Mute
Mute pse in
Nca
Option connector 2 for voice activated system
Phn out (+)
Phn out (-)
Phn shield
Phone (+)
Phone (-)
Pnk
R10
Red
Shield
Voice activated control module (left rear of trunk)

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Infiniti Q45 2003

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List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Infiniti Q45 2003:

(behind left side of dash, near fuse block) joint connector 2
(behind top center of dash, taped to harness) joint connector 13
(on right front strut tower) e24
10k
12r
1st
20b
26r
2nd
Acc
All off
Auto
B57 (at center rear of vehicle)
Bat
Body control module (behind left kick panel)
Combination switch
Computer data lines system
D/mirror lamp
Data line
Door mirror lamp (driver side) (foot well)
Door mirror lamp (passenger side) (foot well)
Door sw (as)
Door sw (dr)
Door sw (rl)
Door sw (rr)
Driver front door switch
E201
Full
Fuse 1 10a
Fuse 54 15a
Fuse 6 10a
Fuse 8 10a
Fuse block (j/b) 1 (behind left end of dash)
Fuse, fusible link & relay box (j/b) (in engine room box)
Gnd
Gnd1
Gnd2
Half
Headlamp battery saver control unit (behind dash, left of steering column)
Hot at all times
Hot in on or start
Ign
Ign key ill
Ign sw
Ignition key hole illumination
Iiurx
Iutx
Joint connector (behind upper right end of dash, taped to harness)
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 15 (behind upper right end of dash, taped to harness)
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 18 (behind upper right end of of dash, taped to harness)
Joint connector 20 (behind right side of dash, taped to harness)
Joint connector 5 (behind left side of dash, taped to harness)
Key sw
Key switch & key lock solenoid (key switch)
Left personal lamp
Light sw (1st)
M115 (behind right side of dash)
M24 (behind left side of dash)
M25 (behid left side of dash)
M33
M34
M55
Map/l (lh)
Map/l (rh)
Navigation system
Off
Personal lamp (rl)
Personal lamp (rr)
Personal lamp sw
Rear interior lamp
Right front door switch
Right personal lamp
T/l rly out1
T/l rly out2
T/l sw1
T/l sw2
Tail/l rly
Taillamp relay
Total ill
Trunk lid striker switch
Trunk room lamp
Trunk, tailgate, fuel doors system

Courtesy Lamps Wiring Diagram (2 of 2) for Infiniti Q45 2003

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List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Infiniti Q45 2003:

(in left front door)
Auto
B17 (under left front door sill)
B217 (under right front door sill)
Bat (c/b)
Circuit breaker
Console lamp
D38
D39
D58
D59
D78
D79
Data line a3
Driver door control unit
Driver front door lcok actuator (door unlock sensor)
Driver front step lamp
E201
E24 (on right front strut tower)
Front interior lamp
Fuse 21 10a
Fuse 3 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Hot at all times
Hot in acc or on
Illumination lamps circuit
Interior lamp illumination switch
Joint connector
Joint connector (behind center of dash)
Joint connector (behind center of dash)
Joint connector (behind lower right end of dash, taped to harness)
Joint connector (behind upper left side of dash)
Joint connector 15 (behind upper right end of dash, taped to harness)
Joint connector 37 (behind right rear shock tower, taped to harness)
Left map light
Left rear door control unit
Left rear door lock assembly (door switch)
Left rear step lamp
Local data line
Locked
M114 (behind right side of dash)
M24 (behind left side of dash)
Off
Passenger door control unit
Passenger front step lamp
Red
Right map light
Right rear door control unit
Right rear door lock assembly (door switch)
Right rear step lamp
Step/l
Unlock sens
Unlocked
Vanity mirror lamp (driver side)
Vanity mirror lamp (passenger side)

Instrument Illumination Wiring Diagram (1 of 3) for Infiniti Q45 2003

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List of elements for Instrument Illumination Wiring Diagram (1 of 3) for Infiniti Q45 2003:

(behind left kick panel) body control module
(behind upper right end of dash, taped to harness) joint connector 16
10k
12r
1st
20b
26r
2nd
Auto
Auto return cancel switch (illum) (w/ rear control switch)
Bat
Comb sw (auto)
Combination meter
Combination switch (light switch)
Computer data lines system
Console box lamp
Console lamp
Courtesy lamps circuit
Diode
Door sw (as)
Door sw (dr)
Driver front door switch
E201
Exterior lights system
Fluorescent lamp
Front interior lamp
Fuse 1 10a
Fuse 54 15a
Fuse 6 10a
Fuse 8 10a
Fuse 9 10a
Fuse block (j/b) 1 (behind left side of dash)
Fuse, fusible link & relay box (in engine room box)
Gnd1
Gnd2
Headlamp battery saver control unit (behind dash, left of steering column)
Hot at all times
Hot in on or start
Ign sw
Ill out
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 17 (behind upper right end of dash, taped to harness)
Joint connector 18 (behind upper right end of dash, taped to harness)
Joint connector 4 (behind upper left side of dash)
Joint connector 5 (behind left side of dash, taped to harness)
Light sw (1st)
M114 (behind right side of dash)
M115 (behind right side of dash)
M24 (behind left side of dash)
M25 (behind left side of dash)
M33
M41
M42
M43
M55
Off
Power tops system
Power windows system
Rap input
Rap output
Rear control switch (illum) (w/ rear control switch)
Rear sunshade rear switch (illum)
Right front door switch
T/l rly out 1
T/l rly out 2
T/l sw 1
T/l sw 2
Taillamp relay
Tal/l rly
Unified meter control unit
W/ rear control switch
W/o rear control switch

Instrument Illumination Wiring Diagram (2 of 3) for Infiniti Q45 2003

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List of elements for Instrument Illumination Wiring Diagram (2 of 3) for Infiniti Q45 2003:

(behind right side of dash) m114
(behind right side of dash) m115
(behind top center of dash, taped to harness)
A/t device (illum)
Active damper suspension select switch (illum)
Ashtray
Audio unit (illum)
Cigarette lighter socket
Clock (illum)
Driver side heated seat switch (illum)
Front cigarette lighter (illum)
Glove box lamp
Hazard switch (illum)
Headlamp aiming switch (illum)
Joint connector 1 (behind left side of dash, near fuse block)
Joint connector 13
Joint connector 2 (behind left side of dash, near fuse block)
Multifunction switch (illum)
Passenger side heated seat switch (illum)
Rear sunshade cancel relay (w/ rear control unit)
Vdc off switch (illum)
W/o rear control unit

Instrument Illumination Wiring Diagram (3 of 3) for Infiniti Q45 2003

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List of elements for Instrument Illumination Wiring Diagram (3 of 3) for Infiniti Q45 2003:

B17 (under left front door sill)
B217 (under right front door sill)
Cd auto changer (illum)
Climate controlled seat switch (illum)
Climate controlled seat temperature dial (illum)
Door lock & unlock switch
Door lock/ unlock switch
Driver door control unit
Driver side front power seat
Front power window sub auto switch
Front rear sunshade switch (illum)
Front window main auto sw
Ill
Ill cont
Illum
Illumination control switch
Joint connector 5 (behind left side of dash, taped to harness)
L1a
L2a
Left rear ashtray
Left rear power seat switch
M25 (behind left side of dash)
Passenger door control unit (illum)
Passenger side front power seat
Power window main switch (illum)
Rear control cancel switch (w/ rear control switch)
Red
Right rear ashtray
Right rear power seat switch (illum)

MEMORY SYSTEMS

Memory Systems Wiring Diagram (1 of 3) for Infiniti Q45 2003

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List of elements for Memory Systems Wiring Diagram (1 of 3) for Infiniti Q45 2003:

(behind left side of dash)
(behind left side of dash) m24
20b
A/d batt
A/d gnd
A/t device (detention switch (key))
Acc
Adp steering switch
Back
Batt
Body control module (behind left kick panel)
Circuit breaker 1
Circuit breaker 2
Computer data lines system
Data line 3
Data line a1
Data line a2
Detent switch
Door sw
Exterior lights system
For
Front door switch (driver side)
Fuse 10a
Fuse block (j/b) 1 (behind left end of dash)
Gnd
Hot at all times
Hot in acc or on
Hot in on or start
Hot in start
Ign
Instrument cluster system
Iurx
Iutx
Joint connector
Joint connector (behind upper left side of dash)
Joint connector (behind upper right end of dash, taped to harness)
Joint connector (in left front door)
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 2 (behind left side of dash, near fuse block)
Joint connector 6 (behind center of dash)
Joint connector 9 (behind center of dash)
Key switch
Key switch & key lock solenoid (key switch)
M24
M25 (behind left side of dash)
Mem 1
Mem 1 sw
Mem 2
Mem 2 sw
Mirror sw down
Mirror sw left
Mirror sw right
Mirror sw up
Naviagtion system
Pnk
Red
Rev lamp sw
Seat memory switch
Select sw left
Select sw right
Set sw
Tele motor
Tele signal
Tele sw (fr)
Tele sw (rr)
Tele switch
Telescopic motor (at right side of steering column)
Telescopic sensor (at right side of steering column)
Tilt motor
Tilt motor (at right side of steering column)
Tilt sens
Tilt sensor (at right side of steering column)
Tilt sw dwn
Tilt sw up
Tilt switch
Tilt/tele 5v
Vsp

Memory Systems Wiring Diagram (2 of 3) for Infiniti Q45 2003

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List of elements for Memory Systems Wiring Diagram (2 of 3) for Infiniti Q45 2003:

(behind left side of dash) m24
(behind left side of dash) m25
(behind right side of dash) m114
Bat
Change- over switch
Computer data lines system
Data line a2
Data line a3
Door mirror remote control switch
Down
Driver side door mirror actuator
Driver side door mirror control unit
Gnd
Interior lights system
Joint connector (behind upper right end of dash, taped to harness)
Joint connector 15 (behind upper right end of dash, taped to harness)
Joint connector 17 (behind upper right end of dash, taped to harness)
Joint connector 18 (behind upper right end of dash, taped to harness)
Joint connector 19 (behind right end of dash, taped to harness)
Joint connector 20 (behind right side of dash, taped to harness)
Joint connector 41 (in left front door)
Joint connector 5 (upper left side of dash, taped to harness)
Left
Mirror motor
Mirror sens (left/right)
Mirror sens (up/down)
Mirror switch
Motor (left/right)
Motor (up/down)
Passenger side door mirror actuator
Passengers side door mirror control unit
Pnk
Red
Right
Sensor (left/right)
Sensor gnd
Sensor power
Sensor pwr

Memory Systems Wiring Diagram (3 of 3) for Infiniti Q45 2003

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List of elements for Memory Systems Wiring Diagram (3 of 3) for Infiniti Q45 2003:

14a
15b
16a
32a
32b
32c
B142
B143
B162
B17 (under left front door sill)
Back
Bat
Batt
Bwd
Data line a1
Down
Driver side power seat switch
Driver side sliding motor
Driver's seat control unit (under driver's seat)
Driver's side reclining motor
For
Front lifting motor (driver side)
Frt lift dwn
Frt lift up
Frt pulse sw
Frt reclin mtr
Frt reclin sw
Frt slide mtr
Frt slide sw
Fwd
Gnd
Left rear power seat
Left rear power seat control unit
Lifting sensor
Lumbar support motor
Pnk
Pulse sw gnd
Rear lifting motor (driver side)
Reclin puls sw
Recline switch
Red
Rr lft up
Rr lift dwn
Rr lift up
Rr pulse sw
Rr reclin mtr
Rr reclin sw
Rr slide mtr
Rr slide sw
Slide pulse sw
Slide switch
Switch frt lift dn
Switch lumbar
Switch rear lift dn

NAVIGATION

Navigation Wiring Diagram (1 of 2) for Infiniti Q45 2003

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List of elements for Navigation Wiring Diagram (1 of 2) for Infiniti Q45 2003:

(not used pins are not shown)
12r
17d
19b
19d
20b
23r
26r
A/c auto amplifier (behind right side of dash)
A/c-av(fr tx)
Ac-av
Acc
Acclk
Av & navi control unit (under left side of rear parcel shelf)
Av-a/c(fr rx)
Av-ac
Av-cn
Av-me
B188
B231
B233
B234
B29
B30
B57 (at center rear of vehicle)
Bat
Bose speaker amplifier (at center front of trunk)
Bus shield
Bus+
Bus-
Clk (fr)
Cn-av
Comm sig +
Comm sig -
Display
E201
E24 (on right front strut tower)
Exterior lights system
Fr-sp lh +
Fr-sp lh -
Fuse 10a
Fuse 15a
Fuse block (j/b) 1 (behind left end of dash)
Fuse, fusible link & relay block (j/b) (in engine room box)
Gnd
Gps ant gnd
Gps antenna
Gps sig
Hot at all times
Hot in acc or on
Hot in on or start
Ign
Ill
Instrument cluster system (voice activated control module)
Joint connector 12 (behind top center of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 4 (behind upper left of dash)
Left front door speaker
M114 (behind right side of dash)
Me-av
Multi- function switch
Navi +
Navi -
Nca
Pnk
Red
Rgb gnd
Rgb sync
Shield
Solid state
Sound systems
Speed
Stoplight switch (on bracket, above brake pedal)
Tail lamp relay
Voice +
Voice -

Navigation Wiring Diagram (2 of 2) for Infiniti Q45 2003

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List of elements for Navigation Wiring Diagram (2 of 2) for Infiniti Q45 2003:

(behind center of dash) joint connector 7
(behind right side of dash) m115
1st
2nd
A/t device
Auto
Backup lamp relay
Bat
Body control module (behind left kick panel)
Comb sw
Combination meter
Combination switch (lighting module)
Computer data lines system
Data link connector (under left side of dash)
Engine control module (behind glove box)
Exterior lights system
F101
Fuse, fusible link & relay block (j/b) (in engine room box)
Gnd1
Gnd2
Headlamp battery saver control uint (behind dash left of steering column)
Ign sw
Iiurx
Iiutx
Ill out
Joint connector 11 (behind upper right side of dash, taped to harness)
Joint connector 16 (behind upper right end of dash, taped to harness)
Joint connector 17 (behind upper right end of dash, taped to harness)
Joint connector 18 (behind upper right end of dash, taped to harness)
Joint connector 3 (behind upper left side of dash)
Joint connector 8 (behind center of dash)
Joint connector 9 (behind center of dash)
Lap output
M24 (behind left side of dash)
M25 (behind left side of dash)
M33
M34
M41
M43
M55
Nca
Neut
Off
Parking brake switch (behind dash, at park brake assembly)
Pnk
Rap input
Rev lamp rly
Shieft lock solenoid
Shift lk sol
Start rly
Starting/ charging system
T/l rly out1
T/l rly out2
T/l sw1
T/l sw2
Tail/l rly
Transmission control module (behind glove box)
Unified meter control unit

Rear Camera Wiring Diagram for Infiniti Q45 2003

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List of elements for Rear Camera Wiring Diagram for Infiniti Q45 2003:

(behind left end of dash)
(in engine room box)
23r
Acc
B217 (under right front door sill)
B57 (at center rear of vehicle)
Back up
Bose speaker amplifier (at center front of trunk)
Bus(+)
Bus(-)
Camera
Camera on
Camera+
Camera-
Compo sync
Compo+
Compo-
Display
Exterior lights system
Fuse 10a
Fuse 15a
Fuse block (j/b) 1
Fuse, fusible link & relay box (j/b)
Gnd
Hot at all times
Hot in acc or on
Iris
Iris sw
Joint connector 36 (behind right
Joint connector 37 (behind right
Nca
Rear shock tower,
Rear view camera
Rear view camera control unit (at center front of trunk)
Reverse
Shield
Sig+
Sig-
Sync
Taped to harness)
Tv+
Tv-

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 3) for Infiniti Q45 2003

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List of elements for Power Distribution Wiring Diagram (1 of 3) for Infiniti Q45 2003:

16r
20r
22r
23r
27r
28r
29r
33r
34r
Air condi- tioner relay
Air conditioning system
Anti-lock brakes system
Av control unit, voice activated control unit, rear view camera control unit, sound system & navigation system
Battery
Blower relay
Cruise control system
E24 (on right front strut tower)
Ecm relay
Engine control system
Engine control system, computer data lines system & tramsmissions system
Engine controls system, transmissions system & anti-theft system
From fuse 13 (diagram 2 of 3)
From ignition switch (diagram 2 of 3)
Fuel pump relay
Fuse 10a
Fuse 15a
Fuse 20a
Fuse block (j/b) (behind right kick panel)
Fuse, fusible link & relay block (j/b) (in engine room box)
Fuse, fusible link & relay box (in engine room box)
Fusible link b 50a
Fusible link c 50a
Fusible link f 30a
Fusible link g 50a
Fusible link h 40a
Fusible link j 30a
Fusible link k 50a
Fusible link l 50a
Headlamp relay 1
Headlamp relay 2
Horn relay
Ignition relay
Nca
Phone handset
Pnk
Red
Seats system
Sound system
Starting/ charging system
Tail lamp relay
Throttle control motor relay
To fuse (diagram 2 of 3)
To fuse block (j/b) no.1 (diagram 2 of 3)
To fuse block (j/b) no.1 (diagram 3 of 3)
To fuse block no.1 (diagram 2 of 3)
To ignition switch (diagram 2 of 3)
Transmission system
Wiper/ washer system

Power Distribution Wiring Diagram (2 of 3) for Infiniti Q45 2003

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List of elements for Power Distribution Wiring Diagram (2 of 3) for Infiniti Q45 2003:

(at right side of engine compart- ment
10a
10c
19b
20b
Acc
Accessory relay
Air conditioning system
Air conditioning system, defogger system, sunshade, interior lights system, sound system & phone handset
Body control module & computer data lines system
Circuit breaker
Dual mode muffler control unit, defogger system & seats system
E24 (on right front strut tower)
Electronic suspension system, vdc/tcs/abs control unit & electronic power steering system
Engine controls system
Exterior lights system
From fusible c link g (diagram 1 of 3)
From fusible link c (diagram 1 of 3)
From ignition relay (diagram 1 of 3)
Front cigarette lighter socket
Front power socket
Fuse 10a
Fuse 15a
Fuse 20a
Fuse block
Fuse block (j/b) (no.1) (behind left end of dash)
Fuse block (j/b) no.1 (behind left end of dash)
Headlights system
Headlights system (drl) & engine controls system
Ignition switch
J/c 19 (behind right end of dash, taped to harness)
Low tire pressure warning control unit, av control unit, navigation system & cruise control system
Low tire pressure warning control unit, body control module, a/c auto amp, headlights system, interior lights system, instrument cluster system, rear view camera control unit, voice activated control module, computer data lines system, sound systems, power antenna system, navigation system & anti-theft system
M114 (behind right side of dash)
Mirrors system
Off
Pnk
Power tops system, door locks system, anti-theft system, defogger system, power windows system, seats system, headlights system, exterior lights system, interior lights system, warning system, wiper/washer system, navigation system, body control module & headlamp battery saver control unit
Red
Seats system
Shift interlock system & cruise control system
Start
Starting/ charging system
To blower relay (diagram 1 of 3)
To fuel pump relay (diagram 1 of 3)
To fuse block (j/b) no. 1 (diagram 3 0f 3)
To ignition relay (diagram 1 of 3)

Power Distribution Wiring Diagram (3 of 3) for Infiniti Q45 2003

Get access to all wiring diagrams of the car

List of elements for Power Distribution Wiring Diagram (3 of 3) for Infiniti Q45 2003:

(diagram 2 of 3)
10k
11b
Circuit breaker
Defogger system
Door locks system, antitheft system, power windows system, computer data lines system & interior lights system
Engine controls system, shift interlock system, electronic suspension system, anti-lock brakes system, exterior lights system, warning system & cruise control system
Engine controls system, transmissions system, low tire pressure warning control unit, electronic suspension system, anti-lock brake system, anti-theft system, interior lights system, air conditioning system, instrument cluster system, warning system, navigation system, shift interlock system, headlights system, phone handset & headlamp battery saver control unit
Exterior lights system
From accessory relay k
From fusible link h (diagram 1 of 3)
Fuse 10a
Fuse 15a
Fuse 20a
Fuse block (j/b) no.1 (behind left end of dash)
Homelink universal transmitter & interior lights system
Interior lights system
Memory system & computer data line system
Power top system, door locks system, anti-theft system, power windows system, interior lights system, exterior lights system & computer data lines system
Seats system & computer data lines system
Shift interlock system, door locks system, anti-theft system, power windows system, mirrors system, headlights system, interior lights system, warning system & computer data lines system
Trunk lid opener relay
Trunk/tailgate/ fuel doors system & doors locks system
Trunk/tailgate/ fuel doors system, power tops system, door locks system, anti-theft system, defogger system, power windows system, interior lights system, mirrors system, seats system, headlights system, warning system, wiper/washer system & computer data lines system